PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   DETROIT
                                          MONTH:     MAY
                                          YEAR:      2004
                                          LATITUDE:   42 13 N                   
                                          LONGITUDE:  83 20 W                   

  TEMPERATURE IN F:       :PCPN:    SNOW:  WIND      :SUNSHINE: SKY     :PK WND 
================================================================================
1   2   3   4   5  6A  6B    7    8   9   10  11  12  13   14  15   16   17  18
                                          AVG MX 2MIN
DY MAX MIN AVG DEP HDD CDD  WTR  SNW DPTH SPD SPD DIR MIN PSBL S-S WX    SPD DR
================================================================================

 1  61  41  51  -3  14   0 0.98  0.0    0 10.9 20  20   M    M  10 138    24  10
 2  50  38  44 -11  21   0 0.48  0.0    0 10.5 21 360   M    M   8 1      26  10
 3  49  34  42 -13  23   0 0.00  0.0    0  9.2 18 320   M    M   6        22 320
 4  62  32  47  -8  18   0    T  0.0    0 13.7 28 230   M    M   6 8      33 220
 5  63  48  56   0   9   0 0.10  0.0    0  9.1 21 230   M    M   4 13     24 230
 6  83  45  64   8   1   0 0.06  0.0    0  9.5 21 190   M    M   5 13     25 200
 7  65  43  54  -3  11   0 0.12  0.0    0 11.6 21  10   M    M   7 138    26  20
 8  65  42  54  -3  11   0 0.04  0.0    0  6.4 14 160   M    M   9 3      15  50
 9  80  51  66   9   0   1 0.80  0.0    0  6.5 31 200   M    M   7 13     40 200
10  84  61  73  15   0   8 0.71  0.0    0 12.9 28 220   M    M   8 138    35 240
11  73  56  65   7   0   0    T  0.0    0  6.3 17 140   M    M   8 1      20 140
12  83  60  72  14   0   7    T  0.0    0  8.6 18 220   M    M   2 18     24 220
13  80  64  72  13   0   7 0.08  0.0    0  8.4 23 130   M    M   7 138    29 130
14  80  59  70  11   0   5 0.36  0.0    0 11.9 30 230   M    M   8 18     35 230
15  59  49  54  -6  11   0 0.00  0.0    0  8.1 18 320   M    M  10        21 360
16  63  50  57  -3   8   0 0.00  0.0    0  5.4 12 170   M    M   8 1      13 170
17  77  51  64   4   1   0 0.30  0.0    0  6.9 16 170   M    M   7 138    21 160
18  76  56  66   5   0   1    T  0.0    0  9.3 16 280   M    M   9 18     20 220
19  68  49  59  -2   6   0 0.00  0.0    0  6.9 12 140   M    M   5 18     15 150
20  82  57  70   9   0   5 0.46  0.0    0 10.6 26 230   M    M   8 138    32 230
21  70  55  63   1   2   0 1.69  0.0    0  9.4 40 270   M    M   9 135    52 260
22  84  61  73  11   0   8 0.11  0.0    0 11.5 30 220   M    M  10 138    35 240
23  82  66  74  12   0   9 1.69  0.0    0 14.7 61 220   M    M   9 138    78 220
24  68  55  62  -1   3   0    T  0.0    0 14.2 28 270   M    M   9        35 270
25  64  52  58  -5   7   0 0.01  0.0    0  5.7 13  60   M    M  10 1      15  60
26  69  53  61  -2   4   0    T  0.0    0  7.6 15 290   M    M   6 18     18 240
27  76  48  62  -2   3   0 0.03  0.0    0  6.6 18 260   M    M   5 18     22 270
28  64  49  57  -7   8   0 0.00  0.0    0  7.2 14  10   M    M   7        16  10
29  64  44  54 -10  11   0 0.00  0.0    0  4.8 10 140   M    M   6        14 150
30  72  54  63  -2   2   0 0.36  0.0    0  8.8 22  70   M    M   8 13     33  70
31  78  56  67   2   0   2 0.08  0.0    0 11.8 33 230   M    M   8 18     44 240
================================================================================
SM 2194 1579       174  53  8.46     0.0 285.0          M      229              
================================================================================
AV 70.8 50.9                               9.2 FASTST  PSBL  %   7    MAX(MPH)  
                                 MISC ---->    61 220                 78  220   
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) , PAGE 2

                                          STATION:  DETROIT
                                          MONTH:    MAY
                                          YEAR:     2004
                                          LATITUDE:   42 13 N                   
                                          LONGITUDE:  83 20 W                   

[TEMPERATURE DATA]      [PRECIPITATION DATA]       SYMBOLS USED IN COLUMN 16    

AVERAGE MONTHLY: 60.9   TOTAL FOR MONTH:   8.46    1 = FOG                      
DPTR FM NORMAL:   1.1   DPTR FM NORMAL:    5.41    2 = FOG REDUCING VISIBILITY  
HIGHEST:    84 ON 22,10 GRTST 24HR  2.47 ON 20-21      TO 1/4 MILE OR LESS      
LOWEST:     32 ON  4                               3 = THUNDER                  
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS              
                        TOTAL MONTH:   0.0 INCH    5 = HAIL                     
                        GRTST 24HR     0.0         6 = GLAZE OR RIME            
                        GRTST DEPTH:   0           7 = BLOWING DUST OR SAND:    
                                                       VSBY 1/2 MILE OR LESS    
                                                   8 = SMOKE OR HAZE            
[NO. OF DAYS WITH]      [WEATHER - DAYS WITH]      9 = BLOWING SNOW             
                                                   X = TORNADO                  
MAX 32 OR BELOW:   0    0.01 INCH OR MORE:  19                                  
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:  13                                  
MIN 32 OR BELOW:   1    0.50 INCH OR MORE:   5                                  
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   2                                  

[HDD (BASE 65) ]                                                                
TOTAL THIS MO.   174    CLEAR  (SCALE 0-3)   1                                  
DPTR FM NORMAL   -45    PTCLDY (SCALE 4-7)  13                                  
SEASONAL TOTAL  5926    CLOUDY (SCALE 8-10) 17                                  
DPTR FM NORMAL  -450                                                            

[CDD (BASE 65) ]                                                                
TOTAL THIS MO.    53                                                            
DPTR FM NORMAL    11    [PRESSURE DATA]                                         
SEASONAL TOTAL    65    HIGHEST SLP 30.40 ON  7                                 
DPTR FM NORMAL    17    LOWEST  SLP 29.43 ON 31                                 

[REMARKS]